32 PLACOSTYLUS, NEW CALEDONIA. 



Alt. 68, cliam. 42, length of aperture 43 mill. 



Alt. 68, diam. 43, length of aperture 45 mill. 



Summit of Mt. Mou, New Caledonia, 1219 meters elevation. 



Bulimus bavayi, un individu jeune, CROSSE, J. de C. 1868, p. 162, 

 nl. 8, f. la Placostylus dupuyi KOBELT, Conchy]. Cab. p. 43, pi. 

 10, f. 2, 3, 4. CROSSE, J. de C. 1894, p. 291. 



It is somewhat less solid than P. bavayi^ wants the parietal tooth 

 and the spire differs somewhat in shape. 



P. BONDEENSIS (Crosse & JSouverbie). PI. 8, figs. 20, 21. 



Shell im perforate, ovate-conic, solid, subcompressed, longitudinally 

 rugate-striate ; pale flesh-whitish covered with a deep chestnut epi- 

 dermis streaked with brown-black. Spire conic, the apex subacute ; 

 suture impressed, slightly striate-crenulate, generally denuded of 

 cuticle and whitish. Whorls 7, a little convex, the first 4 wanting 

 cuticle, fleshy-whitish, the penultimate obliquely and obsoletely mal- 

 leate-striate ; last whorl slightly ascending in front, a little longer 

 than the spire, more or less conspicuously spirally substriate, slightly 

 inflated in the middle, a little attenuated basally. 



Aperture nearly vertical, ovate piriforrn, livid yellowish-blue within, 

 the throat sometimes peculiarly granose ; peristome obtuse, hardly 

 reflexed, thickened, whitish-buff, the margins joined by a thick 

 parietal callus, which usually bears a moderate sized median tubercle, 

 rather deep within. Columellar margin slightly vertical, outer lip 

 slightly sinuate above. Length 75, diam. 40, length of apert. inside 

 33 mill. (C.$S.). 



Bonde, in the interior of New Caledonia (Lambert, Marie). 



Bulimus bondeensis C. & S., J. de C. -1869, p. 270, pi. 8, f. 1. 

 GASSIES, Faune, ii, p. 84, pi. 7, f. 3. PFR., Monogr. viii, p. 118. 

 Placostylus bondeensis KOBELT, t. c., p. 1 11, pi. 27, f. 3, 4. B. b. var. 

 edentula C. & S., 1. c., pi. 8, f. la, Ib Placostylus bondeensis and 

 var. edentula CROSSE, J. de C. 1894, p. 290. 



" This species is readily distinguished from its congeners by the 

 livid blue tint of the interior of the aperture, and the yellowish- 

 whitish peristome." It is thicker than P. bavayi and the other 

 forms here associated, and possibly belongs rather to the P. fibratus 

 group. 



Var. edentula C. & S. (pi. 8, fig. 22) lacks the parietal tubercle, 

 the peristome is white and the interior slate blue. The cuticle is 

 also darker, blackish-brown. It is from the same locality. 



